Automatic leak-proof sealing device for plastic food product tray, has guiding units cooperating with complementary guiding units of parts to guide displacement of plate in translation, with edges during positioning and withdrawal of plate

摘要

The device has a support plate (6) comprising parallel longitudinal edges (61) provided with guiding units such as guiding plate (64) and cylindrical contact plate (65). The units cooperate with complementary guiding units e.g. outer surface (221b) and longitudinal guiding groove (24), of plane longitudinal parts (221) of a tubular lateral wall (22) of a parallelepiped lower cover (2) to guide displacement of the plate in longitudinal translation, with the edges during positioning and withdrawal of the plate on and from a side of a plane front transversal part (222a) of the cover.